Water Pump Impeller Repair Kit – Fits Yamaha 75-100 HP 4-Stroke F75 F80 F90 F100 (Replaces 67F-W0078-00-00)

Water Pump Impeller Repair Kit – Fits Yamaha 75-100 HP 4-Stroke F75 F80 F90 F100

This water pump repair kit provides the necessary components to service and restore the cooling system on Yamaha 4-Stroke outboards from 75 to 100 HP (1999–2017). It is designed to fit Yamaha F75, F75A, F80, F90, F90A, and F100 engine models, ensuring a precise fit for a complete water pump overhaul.

This kit serves as a direct replacement for Yamaha P/N 67F-W0078-00-00 and other equivalent aftermarket part numbers.

• Includes all necessary gaskets, O-rings, bolts, and washers for a complete installation.
• Features a durable Neoprene rubber impeller and Nylon PA66 plastic housing for reliable performance.
• Engineered for direct fitment to the drive shaft, matching OEM specifications.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Water Pump Housing (67F-44311-01-00)
• 1 x Water Pump Impeller (67F-44352-00-00)
• 1 x Impeller Key (90280-04M02-00 / 90280-04M04-00)
• 1 x Insert Cup (67F-44322-00-00)
• 1 x Wear Plate (67F-44323-00-00)
• 1 x O-Ring (93210-46044-00)
• 1 x Water Pump Gasket (688-44315-A0-00 / 688-44315-00-00)
• 1 x Water Pump Gasket (688-44316-A0-00 / 688-44316-01-00)
• 1 x Cartridge Gasket (688-44324-A0-00)
• 2 x Bolt with Washer (90119-08M13-00)
• 2 x Bolt with Washer (90119-08M87-00)
• 4 x Washers (90209-08M02-00)

Installation Guide

1. Disconnect the battery and drain the gear lube from the lower unit.
2. Remove the mounting bolts securing the lower unit to the engine casing.
3. Carefully lower and remove the entire lower unit assembly.
4. Unscrew the bolts on the water pump housing and lift the housing off.
5. Remove the old impeller, gaskets, wear plate, and insert cup. Note their orientation.
6. Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
7. Install the new gasket, wear plate, and insert cup into the housing.
8. Slide the new impeller key onto the drive shaft and install the new impeller, turning the shaft clockwise to bed the vanes.
9. Place the new O-ring in the housing groove and reinstall the housing, tightening bolts to the manufacturer's specified torque.
10. Reattach the lower unit to the engine, ensuring the drive shaft and water tube align correctly.
11. Secure the lower unit with its mounting bolts and refill the gear case with fresh lube.
12. Reconnect the battery and test the engine using a water source to confirm proper water circulation from the tell-tale.

Troubleshooting & FAQ

How do I confirm this kit fits my engine?
Verify your engine's model, horsepower, and year fall within the ranges listed in the "Compatible Engine Models" table. Cross-reference your existing part number with those in the "Part Number Cross-Reference" table to ensure a match.

What are the signs of a failing water pump impeller?
Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "tell-tale" outlet, or a melted water pump housing. Failure to replace a worn impeller can lead to severe engine damage.

How often should I replace the water pump impeller?
For preventative maintenance, it is recommended to replace the impeller every 1 to 2 years or every 100-200 hours of operation, depending on usage conditions (e.g., saltwater vs. freshwater). Always consult your engine's service manual for specific maintenance intervals.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.